Chaeles clifton



`C. CLIFTON.

v Paint Mill. A

. No. 60,691. Patented Jany 1, 1867.

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Ll- -f WTNESS @Kmq 1 why N. PETERS, Plmmumngnpmr. washlnglm D. c,

TO ALL WHOM IT MAY CONCERN n e @garten tstrs heirat @frn CHARLESCLIFTON, OF JERSEY CITY, NEW JERSEY. Lesers meer Ne. 60,691, ezeeeezJanuary 1, 1867.

IMPROVEMENT IN PAINT-MILLS.

itinA Stimuli referat tu iml tipa ttias 33mm :mh mating pat ai tigetime.

Be it known that I, CHARLES CLIFTON, of Jersey City, Hudson county, andState of New Jersey, have invented new and useful Improvements inGrinding-Mills; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable .others skilledin the art to make and use the same, reference being' had to theaccompanying drawing, forming part of' this specification.

The present invention relates to improvements in mills or machines forthe grinding or pulverizing of paints,

ores, or other minerals, and it consists principally of a revolvinghollow cylinder tapering from end to end, in

combination with a stationary crusher or grinder, the two being arrangedand combined together in an extremely novel and peculiar manner,lwhereby4an eiiicient and practical grinding-mill is obtained, as will beobvious from the following detail description of ythe same, referencebeing had' to the accompanying plato of drawings, in which V Figure 1 isa horizontal section, taken in the plane of the line :I: w, fig. 2.

Figure 2, a transverse vertical section, taken in the plane of the liney y, fig. 1.

Figure 3, a longitudinal vertical section, taken in the plane of theline z e, fig. 1; and

Figure 4, a detail section, taken in the plane of the line w w, fig. 1.

Similar letters of reference indicate like parts.

A A, in the drawings, represent a hollow cylinder, which .is made of atapering shapefrom end to end, and closed at each end by head-plates BB. This cylinder is hung upon a central horizontal shaft or axis, C,which extends entirely through the same, projecting from each end orhead, and -at such projecting end is `supported en uprights orstandards, D, fixed to the bottom or bed-frame E; the body portion ofthe cylinder resting upon friction-rollers, F, hung upon the upper sideof the bed-frame E. Around the cylinder A, at or near its smaller end, atoothed or gear-ringer collar, G, is secured, with which interlocks avertical gear-wheel, H, of a horizontal shaft I, arranged to turn insuitable bearings of the uprights of the bed-frame E. K, a pulleysecured to one end of shaft I, to which pulley the driving poweremployed is to be connected. The portion'of the-shaft,

C, embraced between the two cylinder heads, B, is made of asquare'shape, with pieces, L, projecting from each side of its twosides, and at corresponding points, through which pieces extend downwardprojecting squareshaped arms M, that are secured in position by means ofnuts, N, screwed upon their upper ends. Between these posts or arms M,and extending from one end ofthe cylinder to the other, thegrinderfweight, O. is placed,

resting upon the bottom of the cylinder, and playing up and down in thesame between the said posts, M,which act as guides to such movement.This weight, O, is open from end to end, or made of a boxfshape, withits two ends open, so as to receive a series of plates, P, which arelaid one upon another, the number of which is to `depend upon the weightdesired for the grinder. On the upper side of the cylinder-shaft, C, arocker frame, Q, is suspended in suitable bearings at each end, to whichframe a scrapereblade, Be, is secured by screw bolts and nuts, or in anyother proper manner, so that its edge, S, will bear against the interiorsurface of, the cylinder A. This frame, carrying the scraper R, has aweight, T, affixed to its arm U, projecting from the opposite side ofthe same to that at` which the scraper-blade is secured, as explained;the object of this weight being ,to hold the scraper' to its work orbearing upon the cylinder, for the more perfect accomplishment of whichthe weight A is susceptible of adjustment upon the arm U, so as toproduce more o r less pressure upon the scraper-blade, according as mayhe desired. Through the end of the shaft C, at the smaller end of thecylinder, a hole m: passage, a, is bored in .the direction of itslength, with the inner end Aof which bore commnnicates a bent tubo, bextending downward from the said shaft to a point near the bottom of thecylinder. In the bore, c, is inserted tube c, which projects therefromat its outer end, and at such end is secured in the support ci, upon.thetop of' the upright D, supporting such .end o f the shaft C. In thistube a spiral or screw-shaped shaft, W, is arranoed so as to turn, whichscrew-shaft., at its inner end, extends over the connecting pipe oftube, ,1), of the inside of the cylinder, and at its outer end has apinion or gearfwheel, X, secured to it, which meshes or intorlocks withanother pinion or gear-wheel, Y, 'upon .one end ,of a horizontal shaft,@connected through a gear-wheel, A?, upon its other end, with thegear'wheel or collar, B, upon the smaller ,end ,of the cylinder To .thetube q, in which the screw-shaft revolves, and at or near its outer end,a hopper, C2, is connected, between which the said shaft communicationis had through the open bottom, D2, of the same. In this open bottom aslide, E2, is arranged for closing or opening the-same, at pleasure; mld11b00 the Said open bottom a sieve .or perforated plate, F2, is used toregulate the size of the particles `of material passing to the saidscrew-shaft. G2, a passage through end of 'shaft C, having the screwarranged in it ab above described, with the inner end of which passage abent pipe or tube, H2, is connected, thatextends downward to a pointnear the bottom of the cylinder A. I2, a pipe or tube extending from apoint near the bottom of the larger end of the cylinder, A, to thecentre-shaft, C, at suchend, with a passage, I2, of which itcommunicates at its inner cud; this passage, extending through theshaft, in the direction of its length, to the outer end, J2, of thesamegwhere it terminates in a shorttube or pipe L2.

Having thus in detail described the construction and arrangement of thevarious parts composing my improved grinding-mill, I will now proceed toexplain the manner in which it operates.

The paint or other material which is to be ground or pulverized isplaced'in the hopper C2, from which, passing down through the screen orsieve, F2, and its open bottom D', it enters the tube, c, in which thescrewshaft, W, is arranged, through which it is carried by its inotionor revolution,and forced down through the tube, b into the bottom of thecylinder. v In this cylinder it is acted upon by the grinder orpulverizcr, O, between it and the cylinder, the grinderrcmainingstationary while the cylinder revolves, and is thus ground orpulverized, at the same time gradually working toward the larger end ofthe cylinder, owingnto its taper form, from which, by means of a suctionor other suitable pump, or other proper implement connected with theouter end of the tube, L2, at such end of the cylinder-shaft, it isdrawn up through the same, and discharged from the cylinder. In case it'is necessary to supply water or other suitable moistening liquid to themineral being ground in the cylinder A, it is forced into the samethrough the tube or passage H2, hereinbefore referred to, and bytheaction of the scraper-blade upon the interior surface of the cylinder,the contents of the cylinder are prevented from adhering to the same,but are, on the contrary, caused to be constantly scraped or rem'ovcdtherefrom as the cylinder revolves, and thus always subjected to theaction of the grinder or pulverizer. In tig. 2 a supplementary scraper,A4, is shown. Thisscraper is hung vto one of the legs, M, of thegrinder, at that end of the cylinder having the discharge-pipe I2,forthe material ground in it. This scraper also bear-s against theinside of the cylinder, where it is held'byA weighting it, or in anyother suitable manner, it being arranged to so bear upon the cylinder asto hold the material 'ground in the cylinder downto Athe discharge-pipe,I2, for being pumped through the same, or otherwise removed from thecylinder.

I claim as new, and desire to secure by Leters Patent- 1. The .cylinderA, in combination with the grinder or pulverizer, O, when arrangedtogether and operating substantially as 'and ferithe purpose described.

2'. ',Ihe grinder` or pulverizer O, when made hollow, substantially asand for the purpose described.

3. The spiral screw-shaft or lconvey/ er W, or its equivalent, whenarranged within the stationary centreshaft, C, on which the cylinder Arevolves or turns, vsubstantially as described, for the purposespecified.

4. Removing the material ground in the cylinder, A, from the samethrough a pipe or tube, I, arranged or formed within the centre andstationary shaft C, so as to form a communication between the inside andoutside of the cylinder.`

CHAS. CLIFTON.

Witnesses: l

ALBERT W. BnowN, J. M. COVINGTON.

